Spillover effect

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This article is about the economic term. For spillover effect in imaging, see Spillover (imaging).

Spillover effects are externalities of economic activity or processes that affect those who are not directly involved. Odours from a rendering plant are negative spillover effects upon its neighbours; the beauty of a homeowner's flower garden is a positive spillover effect upon neighbours.

In the same way, the economic benefits of increased trade are the spillover effects anticipated in the formation of multilateral alliances of many of the regional nation states: e.g. SARC (South Asian Regional Cooperation), ASEAN (Association of South East Asian Nations)

In reference to psychology, the spillover effect is when one's emotions affect the way one perceives other events. For example "arousal from a soccer match can fuel anger, which can descend into rioting or other violent confrontations" (Exploring Psychology Eighth Edition in Modules, David G. Myers, 2010) An effect of one person on another is also referred to as crossover effect. (See also: emotional contagion, partner effects)

In the context of work-life balance, spillover refers to positive or negative effects of an individual's working life on their personal life or family life and vice versa. Examples are work-family enrichment and work-family conflict.

Spillover effects are those variables in every economy that cannot be adjusted by a single policy monitored by the government.

The term "spillover effects" when used in Media refers to the reinforcement of a conflict. The news event mobilizes groups that identify with parties of the conflict, and magnifies the event globally.

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